A shaker includes a base, a holder and a drive assembly. The holder is movably disposed on the base. The drive assembly includes a first eccentric shaft, a second eccentric shaft, a drive shaft, plural non-contact magnetic members and a power source. The first eccentric shaft includes a first part and a second part which are non-coaxial. The first part is pivoted on the holder. The second eccentric shaft includes a third part and a fourth part which are non-coaxial. The third part is pivoted on the holder. Two ends of the drive shaft respectively correspond to the second and the fourth parts.The magnetic members are respectively disposed on the second, the fourth parts and the two ends of the drive shaft. The power source is used for driving the first eccentric shaft to rotate, and driving the second eccentric shaft to rotate through the magnetic members and the drive shaft. The shake transmits through the non-contact magnetic members to avoid problems such as vibration and noise.